bullshot
n.— «Faked, enhanced, or otherwise augmented screenshots are commonly called “bullshots.” Their intent is to make a game look more appealing than it actually is, and their occurrence has largely existed since video games were first commercialized. So are bullshots misleading or just good marketing?» —“The truth behind doctored screenshots” by Blake Snow GamePro.com Jan. 15, 2008. (source: Double-Tongued Dictionary)
Further reading
Names don’t always mean what you think they mean. Main Street in San Francisco is named after businessman Charles Main, and Snowflake, Arizona, honors two guys named Snow and Flake. Plus, big words for small people: A colorful new book...
Names don’t always mean what you think they mean. Main Street in San Francisco is named for businessman Charles Main. Snowflake, Arizona, is named for Erastus Snow and William Jordan Flake. This is part of a complete episode.
Related
I think you will find “Bullshot” referenced in the Penny-Arcade blog and comic strip in 2005 (http://www.penny-arcade.com/2005/09/12) as an earlier usage. It may even be the first usage of the word, considering the influence of the Penny Arcade chaps.